Later that year, in an alternate timeline, after CaptainJonathan Archer was struck by a spatial anomaly, a microcellular scan performed by Doctor Phlox revealed that Archer's hippocampus had been infected by parasites, which were preventing the formation of long-term memories. Many years later, when one cluster of parasites were eradicated from Archer's brain, that same cluster also disappeared from microcellular scans taken in the past. Theorizing that eradicating the parasites in the present also removed them in the past, Archer, Phlox, and T'Pol successfully destroyed the remaining parasites, creating another timeline in which the parasites did not infect Archer. (ENT: "Twilight")

The Doctor also ran a microcellular scan on Dammar to search for residual energy traces, after the Nyrian claimed that his mysterious appearance on Voyager involved a number of physical discomforts. (VOY: "Displaced")